<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>bootcss2</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="static/css/bootstrap.min.css">
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-3 bg-info">3</div>
        <div class="col-md-9">
            <div class="col-md-6 bg-success">6</div>
            <div class="col-md-6 bg-warning">6</div>
        </div>
    </div>
    <hr>
    <div class="row">
        <div class="col-md-8 bg-primary">8</div>
        <div class="col-md-3 col-md-offset-1 bg-success">3</div>
    </div>

    <hr>
    <div class="row">
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-danger">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-warning">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-danger">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-warning">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-danger">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-warning">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-danger">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-warning">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-danger">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-warning">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-danger">1</div>
        <div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 bg-warning">1</div>
    </div>
    <hr>
    <div class="row h2">
        <div class="col-md-12 bg-info">head</div>
    </div>
    <div class="row h3">
        <div class="col-md-2 bg-warning">left<br>left</div>
        <div class="col-md-8 bg-primary">center<br>center</div>
        <div class="col-md-2 bg-danger">right<br>right</div>
    </div>
    <div class="row h2">
        <div class="col-md-12 bg-info">footer</div>
    </div>

    <hr>
    <img class="img-rounded" src="static/imgs/html_css.jpeg">
    <img class="img-circle" src="static/imgs/html_css.jpeg">
    <img class="img-thumbnail" src="static/imgs/html_css.jpeg">
    <img src="static/imgs/html_css.jpeg">
    <hr>
    <input type="password" class="form-control input-lg">
    <input type="password" class="form-control">
    <input type="password" class="form-control input-sm">
    <hr>
    <div class="form-group has-feedback">
        <label>电子邮件</label>
        <input type="email" class="form-control">
        <span class="glyphicon glyphicon-ok form-control-feedback"></span>
    </div>
</div>
</body>
</html>